Fetal radiation dose in computed tomography.

Abstract:

:The connection between recorded volumetric CT dose index (CTDI vol) and determined mean fetal dose (Df) was examined from metal-oxide-semiconductor field-effect transistor dose measurements on an anthropomorphic female phantom in four stages of pregnancy in a 64-slice CT scanner. Automated tube current modulation kept the mean Df fairly constant through all pregnancy stages in trauma (4.4-4.9 mGy) and abdomino-pelvic (2.1-2.4 mGy) protocols. In pulmonary angiography protocol, the mean Df increased exponentially as the distance from the end of the scan range decreased (0.01-0.09 mGy). For trauma protocol, the relative mean Df as a function of gestational age were in the range 0.80-0.97 compared with the mean CTDI vol. For abdomino-pelvic protocol, the relative mean Df was 0.57-0.79 and for pulmonary angiography protocol, 0.01-0.05 compared with the mean CTDI vol, respectively. In conclusion, if the fetus is in the primary beam, the CTDI vol can be used as an upper estimate of the fetal dose. If the fetus is not in the primary beam, the fetal dose can be estimated by considering also the distance of the fetus from the scan range.

journal_name

Radiat Prot Dosimetry

authors

Kelaranta A,Kaasalainen T,Seuri R,Toroi P,Kortesniemi M

doi

10.1093/rpd/ncv097

subject

Has Abstract

pub_date

2015-07-01 00:00:00

pages

226-30

issue

1-4

eissn

0144-8420

issn

1742-3406

pii

ncv097

journal_volume

165

pub_type

杂志文章
  • Development of thermal neutron-sensitive glass dosemeter containing lithium.

    abstract::New radiophotoluminescence (RPL) phosphate glass containing (6)Li was successfully made from the powder of NaPO(3), Al(PO(3))(3), LiOH, HPO(3) and AgCl. The ternary diagram of NaPO(3)-Al(PO(3))(3)-LiPO(3) has clarified the region where satisfactory RPL characteristics of the glass are kept up. The synthesised phosphat...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncq552

    authors: Maki D,Kobayashi H,Sato F,Murata I,Kato Y,Tanaka T,Yamamoto T,Iida T

    更新日期:2011-03-01 00:00:00

  • DEVELOPMENT OF A NATIONAL EMERGENCY PLAN FOR MEDICAL DIAGNOSTICS AND THERAPY OF DETERMINISTIC EFFECTS AFTER RADIATION ACCIDENTS.

    abstract::The focus of nuclear emergency planning in Austria has been so far on mitigating effects of widespread contamination (e.g. after NPP accidents); however, these plans did not contain provisions on the medical management of an acute radiation syndrome. To close this gap, a 'Medical Radiation Emergency Plan' was created ...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncw210

    authors: Ziegler A

    更新日期:2016-09-01 00:00:00

  • CYTOGENETIC BIODOSIMETRY OF ACCIDENTAL EXPOSURES IN THE LONG TERMS AFTER IRRADIATION.

    abstract::The group of radiation victims who had received radiation injures similar to those of Chernobyl accident victims was evaluated in terms of retrospective cytogenetic biodosimetry in the long term period of from 17 y up to 50 y after irradiation. Based on the existing results of the long-term cytogenetic examination of ...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncz040

    authors: Nugis VY,Kozlova MG,Nadejina NM,Galstyan IA,Nikitina VA,Khvostunov IK,Golub EV

    更新日期:2019-12-31 00:00:00

  • Evaluation of solid state nuclear track detector stacks exposed on the international space station.

    abstract::The aim of the study was to investigate the contribution of secondary neutrons to the total dose inside the International Space Station (ISS). For this purpose solid-state nuclear track detector (SSNTD) stacks were used. Each stack consisted of three CR-39 sheets. The first and second sheets were separated by a Ti pla...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/nch140

    authors: Pálfalvi JK,Akatov Y,Szabó J,Sajó-Bohus L,Eördögh I

    更新日期:2004-01-01 00:00:00

  • A new position recording system for the partial-body counter at KIT.

    abstract::The position of detectors used for partial-body counters relative to a measured person has considerable influence on the counting efficiency of low-energy photon emitters. To minimise reading errors and enhance reproducibility of position data, an electronic position recording system was installed in the partial-body ...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncq416

    authors: Hegenbart L,Breustedt B

    更新日期:2011-03-01 00:00:00

  • Assessment of natural radioactivity concentrations and gamma dose rate levels in Kayseri, Turkey.

    abstract::This study assesses the level of background radiation for Kayseri province of Turkey. Natural radionuclide activity concentrations in soil samples were determined using high-resolution gamma spectroscopy. Outdoor gamma dose measurements in air at 1 m above ground level were determined using a portable gamma scintillat...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncr023

    authors: Otansev P,Karahan G,Kam E,Barut I,Taskin H

    更新日期:2012-01-01 00:00:00

  • Combined TL and 10B-alanine ESR dosimetry for BNCT.

    abstract::The dosimetric technique described in this paper is based on electron spin resonance (ESR) detectors using an alanine-boric compound acid enriched with (10)B, and beryllium oxide thermoluminescent (TL) detectors; with this combined dosimetry, it is possible to discriminate the doses due to thermal neutrons and gamma r...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/nch110

    authors: Bartolotta A,D'Oca MC,Lo Giudice B,Brai M,Borio R,Forini N,Salvadori P,Manera S

    更新日期:2004-01-01 00:00:00

  • Dose estimation using quartz OSL in the non-linear region of the growth curve.

    abstract::The reliability of equivalent-dose determinations on quartz made with the single-aliquot regenerative-dose (SAR) protocol is examined using a suite of sedimentary samples for which the equivalent dose is expected to be >200 Gy. Experiments on one sample were used to evaluate the precision obtained using the standard m...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.rpd.a006004

    authors: Murray AS,Wintle AG,Wallinga J

    更新日期:2002-01-01 00:00:00

  • Local diagnostic reference levels in standard X-ray examinations.

    abstract::The national diagnostic reference levels (NDRLs) form an efficient, concise and powerful standard for optimising radiation protection of a patient. However, in a large hospital, where many radiological departments are present, it is also possible to calculate and define lower dose values as local diagnostic reference ...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/nch432

    authors: Compagnone G,Pagan L,Bergamini C

    更新日期:2005-01-01 00:00:00

  • Reference dosimetry for light-ion beams based on graphite calorimetry.

    abstract::Developments in hadron therapy require efforts to improve the accuracy of the dose delivered to a target volume. Here, the determination of the absorbed dose under reference conditions was analysed. Based on the International Atomic Energy Agency TRS-398 code of practice, for hadron beams, the combined standard uncert...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/nct299

    authors: Rossomme S,Palmans H,Thomas R,Lee N,Duane S,Bailey M,Shipley D,Bertrand D,Romano F,Cirrone P,Cuttone G,Vynckier S

    更新日期:2014-10-01 00:00:00

  • Harmonization of individual dosimetry quality control within metrology system of a small country.

    abstract::A programme of harmonization of individual dosimetry quality control organized in the framework of a distributed metrology system is presented as seen from the experiences gained in Slovenia. As a part of the programme intercomparison of dosimetry services was organized and basic characteristics of dosimetry systems c...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncm198

    authors: Stuhec M,Zorko B,Vekić B,Miljanić S,Ban R,Basić B

    更新日期:2007-01-01 00:00:00

  • Can the confidence in long range atmospheric transport models be increased? The pan-european experience of ensemble.

    abstract::Is atmospheric dispersion forecasting an important asset of the early-phase nuclear emergency response management? Is there a 'perfect atmospheric dispersion model'? Is there a way to make the results of dispersion models more reliable and trustworthy? While seeking to answer these questions the multi-model ensemble d...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/nch261

    authors: Galmarini S,Bianconi R,Klug W,Mikkelsen T,Addis R,Andronopoulos S,Astrup P,Baklanov A,Bartniki J,Bartzis JC,Bellasio R,Bompay F,Buckley R,Bouzom M,Champion H,D'Amours R,Davakis E,Eleveld H,Geertsema GT,Glaab H,Kol

    更新日期:2004-01-01 00:00:00

  • Dosimetric data and radiation risk analysis for new procedures in interventional cardiology.

    abstract::The purpose of this study was to evaluate radiation doses to the patients and operators during interventional cardiology procedures, with a particular focus on the transcatheter aortic valve implantation (TAVI). Patient doses for 5549 diagnostic and therapeutic procedures and 76 TAVI were examined, as well as occupati...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncq208

    authors: Signorotto P,del Vecchio A,Montorfano M,Maisano F,Giagnorio M,Bellanca R,Colombo A,Calandrino R

    更新日期:2010-12-01 00:00:00

  • Radon in private drinking water wells.

    abstract::At least 10% of inhabitants in the Czech Republic are supplied with water from private sources (private wells, boreholes). With the increasing cost of water, the number of people using their own sources of drinking water will be likely to increase. According to the Decree of the State Office for Nuclear Safety about t...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncu095

    authors: Otahal P,Merta J,Burian I

    更新日期:2014-07-01 00:00:00

  • Using simple mathematical functions to simulate pathological structures--input for digital mammography clinical trial.

    abstract::In this study a set of structures has been simulated to represent a range of clinically relevant breast cancer mammographic lesions including solid tumours and microcalcifications. All structures have been created using simple random-based mathematical functions and have been inserted into a subset of digital mammogra...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/nch552

    authors: Ruschin M,Tingberg A,Båth M,Grahn A,Håkansson M,Hemdal B,Andersson I

    更新日期:2005-01-01 00:00:00

  • GAMMA DOSE RATES IN THE HIGH BACKGROUND RADIATION AREA OF MANGALORE REGION, INDIA.

    abstract::Elevated levels of natural background radiation due to scattered patches of monazite sand around the beaches of Mangalore, India, have been reported earlier. A comparative study of gamma dose rates was performed in both normal background and high natural background radiation areas around Mangalore using different type...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncz063

    authors: Al-Azmi D,Kumara S,Mohan MP,Karunakara N

    更新日期:2019-10-01 00:00:00

  • Dose Estimating Application Software Modification: Additional Function of a Size-Specific Effective Dose Calculator and Auto Exposure Control.

    abstract::Adequate dose management during computed tomography is important. In the present study, the dosimetric application software ImPACT was added to a functional calculator of the size-specific dose estimate and was part of the scan settings for the auto exposure control (AEC) technique. This study aimed to assess the prac...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncw241

    authors: Kobayashi M,Asada Y,Matsubara K,Suzuki S,Matsunaga Y,Haba T,Kawaguchi A,Daioku T,Toyama H,Kato R

    更新日期:2017-05-01 00:00:00

  • Quality assurance (QA) procedures for software: evaluation of an ADC quality system.

    abstract::Image viewing and processing software in computed radiography manipulates image contrast in such a way that all relevant image features are rendered to an appropriate degree of visibility, and improves image quality using enhancement algorithms. The purpose of this study was to investigate procedures for the quality a...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/nci742

    authors: Efstathopoulos EP,Benekos O,Molfetas M,Charou E,Kottou S,Argentos S,Kelekis NL

    更新日期:2005-01-01 00:00:00

  • Occurrence of natural radioactivity in public water supplies in Germany: (238)U, (234)U, (235)U, (228)RA, (226)RA, (222)RN, (210)PB, (210)PO and gross alpha activity concentrations.

    abstract::The Federal Office for Radiation Protection performed a representative survey on the radiological quality of drinking water in Germany. The aim of this study was to determine regional variations of natural radionuclide concentrations and to estimate radiation exposures caused by drinking water consumption. The study i...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncq139

    authors: Beyermann M,Bünger T,Schmidt K,Obrikat D

    更新日期:2010-09-01 00:00:00

  • Investigation of radiation-induced multilayered signalling response of the inflammatory pathway.

    abstract::Ionising radiation exposure of cells might induce the perturbation of cell functions and, in particular, the activation or inhibition of several important pathways. This perturbation can cause the deregulation of both intra- and extra-cellular signalling cascades (such as the inflammatory pathway) and alter not only t...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncv132

    authors: Babini G,Ugolini M,Morini J,Baiocco G,Mariotti L,de Fatis PT,Liotta M,Ottolenghi A

    更新日期:2015-09-01 00:00:00

  • Panel discussion: Do non-targeted effects impact the relation between microdosimetry and risk?

    abstract::An invited panel discussed with the participants of the Symposium their views on the impact of non-targeted effects on the relationship between microdosimetry and risk. The discussion was wide ranging and lively, with divergences of opinion. At one end was the view that understanding microscopic features and distribut...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncq393

    authors: Goodhead DT

    更新日期:2011-02-01 00:00:00

  • Correlation between thermoluminescence and mechanoluminescence of gamma-irradiated Dy activated potassium and magnesium mixed sulphate.

    abstract::Thermoluminescene (TL) and mechanoluminescence (ML) properties of gamma-irradiated Dy activated potassium and magnesium mixed sulphate have been studied. (K2Mg2:Dy) (SO4)3 samples having different concentrations of Dy were prepared by solid-state diffusion method. Two distinct peaks, the first approximately 130 degree...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/nci607

    authors: Kher RS,Panigrahi AK,Dhoble SJ,Khokhar MS

    更新日期:2006-01-01 00:00:00

  • MEASUREMENT OF THE POTENTIAL ALPHA ENERGY CONCENTRATION OF RADON PROGENY BY USING LIQUID SCINTILLATION COUNTING METHOD.

    abstract::For more accurate measurement of the potential alpha energy concentration (PAEC) of radon progeny by the liquid scintillation counting (LSC) method, its counting efficiency was studied in this work. A radon progeny standard source was used to provide different concentrations of radon progeny, and the progeny collected...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncz069

    authors: Feng B,Tang Q,Zhang H,Chen B,Qiu S,Zhuo W

    更新日期:2019-10-01 00:00:00

  • Insights into the sites of X ray and neutron induced chromosomal aberrations in human lymphocytes using COBRA-MFISH.

    abstract::A multi-colour fluorescence in situ hybridisation (MFISH) assay has been developed, for simultaneous visualisation of all human chromosomes in 24 different colours. This assay is based on the simultaneous use of combinatorial labelling and ratio labelling, the so called combined binary ratio labelling (COBRA). This te...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.rpd.a006758

    authors: Darroudi F,Bezrookove V,Fomina J,Mesker WE,Wiegant JC,Raap AK,Tanke HJ

    更新日期:2002-01-01 00:00:00

  • Development of a new passive integral dosemeter for gamma ray monitoring using an imaging plate.

    abstract::A new passive integral dosemeter for gamma ray monitoring is being developed using an imaging plate (IP). In the application of IPs to dosimetry, a fading effect causes serious problems. The fading is considered to be caused by the recombination or holes and charges trapped shallowly in the F centres, which have sever...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/oxfordjournals.rpd.a006396

    authors: Ohuchi H,Yamadera A,Baba M

    更新日期:2003-01-01 00:00:00

  • Radiation doses in cerebral perfusion computed tomography: patient and phantom study.

    abstract::The purpose of this study was to investigate radiation doses in cerebral perfusion computed tomography (CT) examination. As a part of routine patient monitoring, data were collected on patients in terms of the skin dose and CT dose index (CTDIvol) and dose-length product (DLP) values. For the estimation of the dose to...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncs260

    authors: Arandjic D,Bonutti F,Biasizzo E,Ciraj-Bjelac O,Floreani M,Giustizieri M,Iaiza F,Inkoom S,Tommasini G,Padovani R

    更新日期:2013-05-01 00:00:00

  • Albedo Neutron Dosimetry in a Deep Geological Disposal Repository for High-Level Nuclear Waste.

    abstract::Albedo neutron dosemeter is the German official personal neutron dosemeter in mixed radiation fields where neutrons contribute to personal dose. In deep geological repositories for high-level nuclear waste, where neutrons can dominate the radiation field, it is of interest to investigate the performance of albedo neut...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncw147

    authors: Pang B,Becker F

    更新日期:2017-04-28 00:00:00

  • Optical absorption, TL and IRSL of basic plagioclase megacrysts from the pinacate (Sonora, Mexico) quaternary alkalic volcanics.

    abstract::The paper presents the first results of an investigation on optical absorption (OA), thermally and infrared stimulated luminescence (TL and IRSL) of the Pinacate plagioclase (labradorite). The OA spectra reveal two bands with maxima at 1.0 and 3.2 eV connected with absorption of the Fe3+ and Fe2+ and IR absorption at ...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/nci643

    authors: Chernov V,Paz-Moreno F,Piters TM,Barboza-Flores M

    更新日期:2006-01-01 00:00:00

  • International action plan on the radiation protection of patients.

    abstract::Realising that the major part of radiation protection efforts had been directed for over half a century at radiation protection of workers, and that there are major issues in relation to medical exposure, which contributes to over 95 % of the dose to the global population from man-made sources, with increasing individ...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncr258

    authors: Rehani MM,Holmberg O,Ortiz López P,Mettler F

    更新日期:2011-09-01 00:00:00

  • RESULTS AND DISCUSSION ON JAPANESE PUBLIC OPINION SURVEYS (2006-17) ABOUT NUCLEAR AND RADIATION APPLICATIONS.

    abstract::Public opinion on the application of nuclear technology and radiation could change when a nuclear related event occurs. Japan Atomic Energy Relations Organization has tracked its variation through a nationwide opinion survey in Japan by almost the same way every year since FY 2006. We can identify a continuous long-te...

    journal_title:Radiation protection dosimetry

    pub_type: 杂志文章

    doi:10.1093/rpd/ncz127

    authors: Iimoto T,Takashima R,Kimura H,Kawakami K,Endo H,Yasuda H,Nagata N,Sakai N,Kawasaki Y,Funakoshi M

    更新日期:2019-10-01 00:00:00